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U4930 High-precision MEMS IMU Six-axis Inertial Measurement Module (can compatible with HG4930)

U4930 High-precision MEMS IMU Six-axis Inertial Measurement Module (can compatible with HG4930)

The U4930 series MEMS inertial measurement module is a highly reliable and cost-effective six-axis MEMS inertial measurement module, which can be widely used in navigation, control, and measurement fields represented by vehicles, ships, and drones. The U4930 series inertial measurement module integrates high-performance MEMS gyroscopes and MEMS accelerometers within an independent structure. The gyroscopes and accelerometers selected for the system represent the leading level of MEMS technology inertial devices. The three-axis MEMS gyroscopes sense the angular motion of the carrier, and the three-axis MEMS accelerometers sense the linear acceleration of the carrier. The system internally performs compensation for zero bias, scale factor, non-orthogonal error, and acceleration-related terms across all temperature parameters, maintaining high measurement accuracy over a long period of time.

The U4930A series inertial measurement module can be configured with different hardware and software according to user needs.

  • Part No, :

    U4930
  • Order(MOQ) :

    1
  • Description

Product Series and Parameters

 

Parameters U4930-A U4930-B U4930-C
Gyroscope
Measuring range(°/s) ±400 ±400 ±500
Full temperature zero bias(°/h,3σ) ≤2 ≤3 ≤30
Zero bias stability(°/h,10s) ≤0.3 ≤0.8 ≤2
Zero bias instability(°/h,allan,typ) ≤0.03 ≤0.08 ≤0.1
Zero bias repeatability(°/h) ≤0.3 ≤0.5 ≤1
Angle Random Walk (°/√h) ≤0.02 ≤0.05 ≤0.1
Scale factor nonlinearity(ppm) ≤100 ≤100 ≤100
Cross-coupling(rad) ≤0.001 ≤0.001 ≤0.001
Bandwidth(Hz) ≥200Hz ≥200Hz ≥200Hz
Accelerometer
Measuring range(g) ±30
Full temperature zero bias(mg,3σ) ≤2
Zero bias stability(μg,10s) ≤50
Zero bias instability(μg,allan,typ) ≤30
Zero bias repeatability(ug) ≤50
Velocity Random Walk(m/s/√h) ≤0.03
Scale factor nonlinearity(ppm,±1g) ≤100
Cross-coupling(rad) ≤0.001
Bandwidth(Hz) ≥200Hz
Physical Characteristics
Power supply(V) 5~12
Steady-state power (W) ≤2
Startup time(s) ≤2
Data rate(Hz,max) 2000
Size(mm×mm×mm) 64.8×47×35.3
Weight(g) 130±10
Operating environment
Operating temperature(℃) -40~80
Storage temperature(℃) -55~85
Vibration(g,RMS) 20~2000HZ,6.06
Shock(g) 500/1ms

Production process


Product dimension

MEMS Inertial Sensor


Application Scenarios

Inertial Measurement Unit application
The U4930 high-precision six-axis MEMS IMU is suitable for attitude and integrated navigation in drones, vehicles, and marine vessels. It can output data at up to 2000Hz via RS422 in environments ranging from -40 to 80℃ and serves as a replacement for the HG4930..
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FAQ

1. Q: What is the U4930? What are its suitable applications?
 
A: The U4930 is a six-axis high-precision MEMS inertial measurement module (IMU) with a built-in three-axis gyroscope and three-axis accelerometer. It can be used in navigation, control, and measurement applications. Typical applications include vehicle/ship attitude measurement, UAV attitude reference and trajectory control, mobile mapping, track inspection, underwater high-precision navigation, and Satcom-on-the-Move.
 
2. Q: You said it "replaces the HG4930," what are the main replacement points?
 
A: The U4930 is explicitly positioned to replace the HG4930 and offers features such as: full-temperature range (-40℃~+80℃) calibration compensation, small and lightweight design, low power consumption (steady-state power consumption ≤2W), high-speed synchronous sampling/processing, and vibration and shock resistance. To put it simply: it's not about whether it can be replaced, but rather that it's "designed to be a replacement."
 
3. Q: How are the interfaces and outputs connected? What are the data frequencies and communication methods?
 
A: The U4930 uses a custom dual-row pin connector (2.54mm pitch), powered by +5~+12V; communication is RS422 differential (including transmit and receive), with a default output frequency of 200Hz and a default baud rate of 460800bps. The output frequency and baud rate can be configured via a host computer. It also supports PPS and GNSS time input for time synchronization and timestamp output.
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